湖南电网具有典型的西电东送特点 ,远距离输电使电网无功电压问题非常突出。为此对西部所有大电厂进行进相运行试验研究 ,并从单机进相发展成全厂进相 ,获得了定性的和定量的宝贵资料 ,提出的实施方案已运行 2年多 ,基本上解决了电压过高的问题 ,获得了良好的技术经济效益 Hunan Power Grid has the typical features of sending power from west to east, long distance transmission makes the grid reactive power voltage is very prominent. For this reason, all large power plants in the west of the phase operation of the pilot study and development from stand-alone phase into the entire plant into the phase advance, access to qualitative and quantitative valuable information, the proposed implementation of the program has been running more than two years, basically solved the voltage Too high the problem, access to a good technical and economic benefits